Colored member handles in leaderboards

[kkartunov]

Update leaderboards to support colored member handles as now some looker APIs return the required rating data.
In the case of rating data not present in API response then render handles as blue links.

Match design https://marvelapp.com/prototype/ed9e597/screen/70330089

[kkartunov]

@SathyaJayabal will be no sorting on the table as it will change the podium places thus not good.

[SathyaJayabal]

@kkartunov , verified.
Does it apply only for tco21 for now?